Which communications obstacle may be minimized by increasing the strength of the information signal or by using highly directional antennas?

Attenuation refers to the reduction in the strength of a signal as it travels through a medium. This can occur due to a variety of factors, such as distance, physical obstructions, and atmospheric conditions. In electronic warfare and communications, minimizing attenuation is critical for maintaining the integrity and clarity of transmitted signals.

By increasing the strength of the information signal, you enhance its ability to overcome any loss incurred over the transmission medium. This can be particularly useful in long-range communications or in environments with many obstacles. Additionally, using highly directional antennas focuses the signal in a specific direction, thereby increasing the effective strength of the signal in that concentrated area while reducing the impact of interference from unwanted noise or other signals coming from different directions.

These strategies are common in electronic warfare, where clear communication is essential, and they specifically target the challenges posed by attenuation.